Visualization of World Population from 1970 to 2022


Understanding the Data:

The dataset contains population information on 234 different countries and territories within 17 variables:


We can start by ensuring that every column is complete and contains no missing values which can be done by counting the number of instances that occur in each variable column. A quick and easy way to do this is by plotting this result in a bar chart.

Since every column contains 234 instances, we can assume there are no missing values in the dataset


To better understand the dataset, we may wish to know how many countries/territories are being accounted for in each continent


Visualizing the Data:

The data contains two variables which have a clear link to one another as well as population size: Area (km²) and Density (per km²)

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In a direct comparison, it helps to look at the population density in a similar visual to see if any obvious relations exist

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Lets begin looking at the current world population numbers and proportions by first inspecting each continents contribution:

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To get a better idea of how the average and total populations for each continent got to the current levels, we can inspect the changes over the past 50 years in similar plots:

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After looking at each continent as a whole, we can identify which countries and territories have contributed the most and least to the current world population totals:

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We can try to determine if there are any changes in these rankings by looking at the most and least populated countries and territories of the past 50 years:

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Since the data contains information on the world population broken down by each country and territory's contribution, it may be easier to visualize each countries impact by viewing the information on a choropleth map. This makes it possible to view the aggregated population data in a geographic way.

Lets start by looking at a choropleth map of the current 2022 world population

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We can also view a choropleth map of the world population over the past 50 years and see how the population numbers change over the decades through an animation.

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Since nearly half of the current world population reside in China and India, it makes sense to isolate Asia and take a closer look at their changes over the past 50 years.

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